Grain-cleaning mill.



PATENTED SEPT. 24, 1907.

G. L. .GANADY. GRAIN CLEANING MILL.

APPLIOATIOI FILED 00'1'. 18 1006.

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- PATENTED SEPT. 24, 1907.

0. L OANADY. GRAIN CLEANING MILL. APPLICATION FILED OUT. 18. 1906.

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CLAUDE L. OANADY, OF DUBLIN, INDIANA.

GRAIN-CLEANING MI-LL.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed October 18 1906. Serial No. 339,484.

To all whom it may concern:

Be it known that I, CLAUDE L. GANADY, a citizen of the United States, residing at Dublin, in the county of Wayne and State of Indiana, have invented certain new and useful Improvements in Grain-Cleaning Mills, of which the following is a full, clear, and accurate specification and exposition, being such as will enable others to make and use the same with absolute exactitude.

This inventionrelates to grain cleaning mills adapted to be operated by hand and containing several new and useful features and details of construction.

The objects of my invention is to provide a grain cleaning mill containing new and useful improvements and devices which will simplify the construction of mills of this character and at the same time giving new and improved results whereby its work will be accomplished more satisfactorily and thoroughly.

The specific objects of the invention will be pointed out in the following specification and correlated in the appended claims.

The improvements which I claim as new are shown most clearly in the accompanying two sheets of drawings, in which Figure 1 shows a face side elevation of a mill containing my improvements, and Fig. 2 shows a reverse side elevation partly in section of the same; Fig. 3 shows an underside isometrical view of the means for controlling the feed; Fig. 4 shows an elevation of the means for raising and lowering the discharge end of the double screen; Fig. 5 shows a top plan view of the eccentric and connected parts attached to the fan-shaft; and Fig. 6 is an enlarged detail section, showing fragmental part of the double screen as taken on the line XX of Fig. 1, taken in direction of arrows.

Similar indices denote like parts throughout the several views.

In order that my invention may be fully understood and appreciated I will now take up the description thereof and will refer to the various parts and their operation as briefly and as compactly as I may.

The numerals 1, 2, 3 and 4 designate the four standards, their lower portions forming the legs or supports for the mill. The standards 1 and 2 are connected at the top by the bar 5, and the standards 3 and 4 are connected at the top by the bar 6. Below the bar 5 the standards 1 and 2 are again connected by the bar 7, and on a line therewith the standards 3 and 4 are connected by the bar 8. The standards 1 and 3 are connected near their lower ends by the plate 9, as are also the standardsfl and 4 connected by the plate 10. Resting fiat on the top of the standards 2 and 4 and extending inwardly on the top of the bars 5 and 6, and connecting said parts, is the plate 11, as shown in Figs. 1 and 2.

The numeral 12 denotes the hopper, or rather the frame thereof, which is secured between the bars 5 and 6, reaching irom the plate 11 rearward. The bottom of said hopper is composed of two members 13 and 14 which converge downwardly, rearwardly, and forwardly, respectively. The member 13 is permanently secured in the position shown, while the member 14 is arranged to slide edgewise in grooves, their inner edges being adapted to meet each other, or to be spaced apart as desired. The said member 14 is carried between two sets of guides secured to the lower portions of the hopper, the lower set of guides only appearing in the drawings, and they in Fig. 3 where they are designated by the letters a, b, and c.

Mounted in the boxings 15 and 16 is the shaft 17, said boxings being carried on and near the forward ends of the respective bars 7 and 8 as shown. Mounted on the shaft 17 is the fan-wheel 18 in the usual manner. The periphery of the fan-wheel is inclosed by the drum 19, except at the lower rear portion there is provided a mouth for the air-blast to pass from the fan rearwardly over the screens in the usual manner. The under side of the drum or casing extends back some distance connecting with the pivoted edge of the lower air-board A. Connected near the upper edge of said mouth is the pivoted reaiwardly extending air-board B as indicated.

The numerals 19 and 20 designate the two sides of the mill which sides are secured to the inside faces of the standards and bars of the frame and extend from the drum rearward to points slightly beyond the standards 1 and 3 as shown, said sides being in reality a continuation of the lower portion of the ends of the drum.

The letter C designates a double slot formed through the side 19 near the rear ends of said air-boards and extending within the limits of the movements of the air-boards. Secured to said air-boards A and B are the respective threaded pins 21 and 22 which project out through said slot with fly-nuts 23 and 24 on their outer portions to contact with the face of the side 19 as shown in Fig. 1, thereby providing means for adjustably securing the air boards at the point desired to direct the air-blast from the ianwheel as desired.

Secured on the end of the shaft 17 outside the boxing 15, is a sprocket pinion 25, and on a line therewith is the sprocket wheel 26 carried revolubly on the hanger therefor which is secured to the face of the bar 5 and located near the center of said bar as shown in Fig. 1. A sprocket chain 27 connects the wheel 26 and the pinion 25. A crank 28 is attached to the wheel 26 whereby it may be revolved by hand. Adjoining the inner face of the boxing 15 and secured on the shaft 17 is an eccentric 29 adapted to receive the upwardly extending prongs of the vibrator-bar 30; and likewise, an eccentric 31 is secured on the shaft 17 adjoining the boxing 16, said eccentric 31 being adapted to receive the upwardly extending prongs of the vibrator-bar 32. The vibrator-bars 30 and 32 are pivotally mounted near their centers by the respective hangers 33 and 34.

Located some distance to the rear of the vibratorbars 30 and 31 and parallel therewith are the respective hanger-bars 35 and 36, they being pivotally mounted slightly above their centers by the respective hangers 37 and 38.

Located between the two standards 1 and 3 is the riddle shoe 39 which rests loosely on the sides 19 and 20 and extends from near the drum 19 to the rear, and slightly downward, to beyond the standards 1 and 3. The forward or inner end of said riddle shoe is slightly elevated and carried by the upper ends of the hangerbars 35 and 36, said bars being pivotally connected to said riddle shoe by the respective brackets 40 and 41. Pivoted to and connecting the lower end of the vibrator 30 and the hanger-bar 35 is the connecting-bar 42, and likewise pivoted to and connecting the lower end of the vibrator 32 and the hanger-bar 36 is the connecting-bar 43. From the above it will be apparent that as the fan-wheel revolves the riddle shoe 39 will be given a vibratory endwise motion.

Located a short distance below the sides 19 and 20, fitting between the standards 1 and 2, and extending forward and downward, is the grain-conveyer 44, its rear portion being supported slidably on the blocks d and e, which blocks are secured to the inner faces of the standards 1 and 2; and the forward portion of said conveyer is supported from the lower ends of the hanger-bars 35 and 36 by the rod 45 extending therethrough as shown. The end portions of said rod are provided with nuts or heads F and G, respectively. As shown in Figs. 1 and 2 said rod projects out on each side of the conveyer to receive the hanger-bars 35 and 36, respectively, which are held pivotally in place by the said nuts or heads F and G, as indicated.

The numeral 48 denotes a double screen frame slidably mounted between the standards of the frame, being located over and parallel with the conveyer 44, and extending from the rear of the standards 1 and 3 to and beyond the standards 2 and 4, as shown in Figs. 1 and 2. Extending across through the double screen frame 48 is a rod 49 with its ends projecting through the sides of the screen frame as shown in Figs. 1, 2 and 5. In the upper edges of the connecting-bars 42 and 43, located near their pivoted connection with the hanger-bars 35 and 36 are the notches H and J, respectively, in which the ends of the rod 49 may pivotally rest. The rod 49 is secured in position by the nuts D and E which are threaded onto said rod 49, said nuts being located inside the sides of the screen 48 and connected therewith as shown in Fig. 8. By reason of the above described arrangement of the doublescreen it will be noticed that this screen may be slightly elevated and removed from the machine in an endwise direction. The forward portion of the double-screen is adapted to slide, normally on the upper edge of the plate 10.

It is desirable that the forward or discharge end of the double-screen frame 48 may be adjusted vertically in order to adapt it to different kinds of grain, and for this purpose I provide the construction shown in Fig. 4, in which: The numerals 50 and 51 denote two eccentrics, identical with each other, being pivoted to the left and right hand portions, respectively, of the outer face of the vertical plate 10 by the respective bolts 52 and 53, said bolts having fly-nuts thereon whereby they may be adjusted by hand. Said eccentrics have downwardly depending arms which are pivotally connected by the bar 54. As shown by the solid lines in Fig. 4 the said screen is resting on the edge of the plate 10, and it will be seen that by moving the bar 54 to the right that the screen will be raised, as indicated by the dotted lines in said view.

In mills of this character it is very desirable to have means provided for accurately feeding the grain from the hopper into the mill, and also that said means be easily and quickly operatable,-for this purpose I have devised the construction shown in Fig. 3, which I will now describe: As will be noticed in Fig. 3 the slide 14 when closed extends above and parallel with the guide a, and on the underside of the slide 14 are secured the eccentrics 55 and 56, located near the left and right hand edges respectively, said eccentrics being pivoted to the slide 14 by the respective screws or bolts 61 and 62, respectively, whereby when the eccentrics are in one position the slide 14 will close against the member 13, as shown by the dotted lines in Fig. 1, or if on being turned the peripheries of the eccentrics will contact with the upper edge of the guide a and draw the slide 14 upward, as shown by dotted lines in Fig. 3. The eccentrics 55 and 56 are connected by the pivoted bar 63, whereby they will operate synchronously, being adapted to be operated by the handle 56 which extends upwardly from the eccentric 56.

Having now fully shown and described the best construction for my invention to me known, what I claim and desire to secure by Letters Patent of the United States, isv 1. In a grain cleaning mill, a main supporting frame, a hopper, a fan and fan casing, an inclined vibratory upper riddle, a lower reversely inclined screen box carrying screens, intermediately fulcrumed hanger bars having at their upper ends a pivotal connection with said riddle, a vibratory grain conveyer loc'ated below the screen box and having a similar inclination thereto, said grain conveyer having at its upper end a support upon the main frame, and at its lower end a pivotal supporting and vibrating connection with the lower ends of said hanger bars, intermediately fulcrulned vibrator bars having at their upper ends a vibratory connection with the fan shaft, connecting bars having at one end pivotal connection with the lower ends of said vibrator bars, and at their opposite ends pivotal connection with the lower end portions of said hanger bars, said connecting bars having a similar inclination to that of the screen and grain conveyer, said screen box having at its lower end portion asupport upon the main frame, and intermediately thereof a supporting and vibrating connection with the upper end portions of said connecting liars.

2. In a grain cleaning mill, a main supporting frame, a hopper, a fan and fan casing, an inclined vibratory ingscreens, intermediately fulcrumed hanger bars having 10 at its lower end a support upon the main frame and at its intermediate portion being provided with a transverse supporting rod having removable engagement with said notches of the connecting bars.

In testimony whereof I have hereunto subscribed my name to this specification in the presence of two sub 15 scribing witnesses.

- CLAUDE L. CANADY.

Witnesses R. W. RANDLE,

R. E. RANDLE. 

